本帖最后由 jerryiot 于 2022-2-18 15:26 编辑
D1 MINI + 2路继电器 制作可测温、土壤湿度的智能浇水器，可设置浇水的土壤湿度阈值、浇水的时间周期，当检测到土壤湿度低于阈值时自动浇水。
成品：
需要的材料： D1MIINI芯片、2路 继电器、DS18B20测温度、220V-5V稳压、还有土壤湿度传感器 自己用洞洞板焊接了一下，技术很捉急，惨不忍睹，背面就不展示了。 组装起来就可以了： 设计了一下点灯的APP界面： 界面可以获取DS18B20测量的室温，土壤湿度，WIFI信号强度以及两个开关：浇水泵和循环水泵。浇水启动一次持续10s，循环水泵是用来沼泽过滤的，冬天沼泽过滤撤掉了。 最后贴一下代码： - #define BLINKER_WIFI
- #include <Blinker.h>
- #include <OneWire.h>
- #include <DallasTemperature.h>
- #define ONE_WIRE_BUS 2 // DS18B20 on NodeMCU pin D4
- OneWire oneWire(ONE_WIRE_BUS);
- DallasTemperature DS18B20(&oneWire);
- char auth[] = "";
- char ssid[] = "";
- char pswd[] = "";
- // 新建组件对象
- BlinkerButton Button1("btn-w");
- BlinkerButton Button2("btn-s");
- BlinkerNumber TEMP("temp");
- BlinkerNumber JSCOUNT("jscount");
- BlinkerNumber SYSRSSI("rssi");
- BlinkerNumber SOILVALUE("soil");
- BlinkerText SYSTIME("systime");
- BlinkerSlider SliderWP("wp");
- BlinkerSlider SliderWY("wy");
- //定义土壤湿度
- #define soilPin A0
- //Relay
- #define RELAY1 D5
- #define RELAY2 D6
- float temp_read = 0;
- //浇水计数器
- int TOTALCOUNT=0;
- //浇水阈值(土壤湿度低于该值浇水)
- int WY = 20;
- //浇水周期（单位小时）
- int WP = 4;
- void sliderWYcallback(int32_t value)
- {
- BLINKER_LOG("get slider value: ", value);
- WY = value;
- }
- void sliderWPcallback(int32_t value)
- {
- BLINKER_LOG("get slider value: ", value);
- WP = value;
- }
- void heartbeat()
- {
- TEMP.print(temp_read);
- String tstr = getTime();
- int tmpsoil = getSoilValue();
- SYSRSSI.print(WiFi.RSSI());
- SYSTIME.print(tstr);
- SOILVALUE.print(tmpsoil);
- JSCOUNT.print(TOTALCOUNT);
- SliderWP.print(WP);
- SliderWY.print(WY);
- if (digitalRead(RELAY2) == HIGH)
- {
- Button2.color("#708090");
- Button2.print("off");
- }
- else if(digitalRead(RELAY2) == LOW)
- {
- Button2.color("#6666ff");
- Button2.print("on");
- }
- }
- // 按下按键即会执行该函数
- void button1_callback(const String & state)
- {
- BLINKER_LOG("get button state: ", state);
- digitalWrite(LED_BUILTIN, !digitalRead(LED_BUILTIN));
- startRainOneTime();
- }
- void button2_callback(const String & state)
- {
- BLINKER_LOG("get button state: ", state);
- if (state == BLINKER_CMD_ON) {
- digitalWrite(RELAY2, LOW);
- Button2.color("#6666ff");
- Button2.print("on");
- }
- else if (state == BLINKER_CMD_OFF) {
- digitalWrite(RELAY2, HIGH);
- Button2.color("#708090");
- Button2.print("off");
- }
- }
- String getTime()
- {
- uint32_t time=millis();
- int day=time / 86400000;
- int hour=(time-(86400000*day)) / 3600000;
- int min=(time-(86400000*day)-(3600000*hour)) / 60000;
- String timeStr=String(day)+"天"+String(hour)+"时"+String(min)+"分";
- if (hour > 0 and hour % WP == 0 and getSoilValue() < WY)
- {
- Blinker.print(timeStr);
- Blinker.print("自动浇水一次！");
-
- startRainOneTime();
- }
-
- return timeStr;
- }
- int getSoilValue()
- {
- int soilValue;
- int soilMoisture;
- //读取土壤传感器上的电压值
- soilValue = analogRead(soilPin);
- //把电压值按照[0,1023]映射到[100,0]
- soilMoisture = map(soilValue,0,1023,100,0);
- return soilMoisture;
- }
- void startRainOneTime()
- {
- //继电器开10s 用于浇水
- digitalWrite(RELAY1, !digitalRead(RELAY1));
- Blinker.delay(10000);
- digitalWrite(RELAY1, !digitalRead(RELAY1));
- TOTALCOUNT++;
- }
- void setup()
- {
- // 初始化串口
- Serial.begin(115200);
- BLINKER_DEBUG.stream(Serial);
- BLINKER_DEBUG.debugAll();
-
- // 初始化有LED的IO
- pinMode(LED_BUILTIN, OUTPUT);
- digitalWrite(LED_BUILTIN, HIGH);
- //Relay
- pinMode(RELAY1, OUTPUT);
- digitalWrite(RELAY1, HIGH);
- pinMode(RELAY2, OUTPUT);
- digitalWrite(RELAY2, LOW);
-
- // 初始化blinker
- Blinker.begin(auth, ssid, pswd);
- Button1.attach(button1_callback);
- Button2.attach(button2_callback);
- SliderWP.attach(sliderWPcallback);
- SliderWY.attach(sliderWYcallback);
-
- Blinker.attachHeartbeat(heartbeat);
- DS18B20.begin();
- }
- void loop() {
- Blinker.run();
- DS18B20.requestTemperatures();
- temp_read = DS18B20.getTempCByIndex(0);
- Serial.print(temp_read);
- BLINKER_LOG("temp: ", temp_read);
- Blinker.delay(2000);
-
- }
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发表于 2022-2-18 15:15
楼主